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Charles W Perry
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Cincinnati, OH, US
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last 30 patents
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Patent Grant
Method for coloring building materials using a cationic pigment dis...
Patent number
7,999,017
Issue date
Aug 16, 2011
Sun Chemical Corporation
Hans Rasmusen
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Method for coloring cellulosic materials using cationic pigment dis...
Patent number
7,282,263
Issue date
Oct 16, 2007
Sun Chemical Corporation
Hans Rasmusen
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Organic pigment dispersion for coloring building materials
Patent number
6,786,965
Issue date
Sep 7, 2004
Sun Chemical Corporation
Charles W. Perry
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Patents Applications
last 30 patents
Information
Patent Application
METHOD FOR COLORING BUILDING MATERIALS USING A CATIONIC PIGMENT DIS...
Publication number
20100222453
Publication date
Sep 2, 2010
SUN CHEMICAL CORPORATION
Hans Rasmusen
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Application
Method for coloring cellulosic materials using cationic pigment dis...
Publication number
20050025972
Publication date
Feb 3, 2005
Hans Rasmusen
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
Method for coloring building materials using a cationic pigment dis...
Publication number
20050014868
Publication date
Jan 20, 2005
Hans Rasmusen
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Application
Organic pigment dispersion for coloring building materials
Publication number
20030047118
Publication date
Mar 13, 2003
Charles W Perry
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES